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CDL passenger transport practice test 3

25 more questions on passenger transport, written from the Commercial Driver's License Manual (2025 CDL Manual).

25 questions

  1. Question 1What should a bus driver do with the seat belt at the driver's seat?

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    C: Always use it. The driver's seat should have a seat belt, and the driver should always use it. Commercial Driver's License Manual (2025 CDL Manual): 4.1.5 Use Your Seatbelt!, page 4-1.

  2. Question 2A drawbridge has a traffic light showing green. What should a bus driver do?

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    D: Slow down and make sure it is safe; a stop is not required. You do not need to stop at a drawbridge with a green traffic light or an attendant who controls traffic, but you must slow down and make sure it's safe. Commercial Driver's License Manual (2025 CDL Manual): 4.3.6 Drawbridges, page 4-3.

  3. Question 3When may a bus carry small amounts of other hazardous materials (beyond ammunition, hospital supplies and drugs)?

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    B: Only if the shipper cannot send them any other way. You can carry small amounts of some other hazardous materials only if the shipper cannot send them any other way. Commercial Driver's License Manual (2025 CDL Manual): 4.2.2 Forbidden Hazardous Materials, page 4-2.

  4. Question 4A rider puts a carry-on bag in the aisle. What should you do?

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    C: Not allow it; nothing should be left in the aisle or a doorway. Do not let riders leave carry-on baggage in a doorway or aisle. Nothing should be in the aisle that might trip other riders. Commercial Driver's License Manual (2025 CDL Manual): 4.2 Loading and Trip Start, page 4-1.

  5. Question 5When you stop a bus at a railroad crossing, what should you turn on?

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    C: Four-way emergency flashers. When stopping at a railroad crossing, check traffic behind you, stop gradually (using a pullout lane if there is one) and turn on your four-way emergency flashers. Commercial Driver's License Manual (2025 CDL Manual): 2.15.4 Stopping Safely at Railroad-highway Crossings, page 2-32.

  6. Question 6Which of these must a bus never carry?

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    B: Liquid Class 6 poison. Liquid Class 6 poison is on the list of materials a bus may never carry, along with Division 2.3 poison gas, tear gas and irritating material. Commercial Driver's License Manual (2025 CDL Manual): 4.2.2 Forbidden Hazardous Materials, page 4-2.

  7. Question 7Which is a reason for securing baggage and freight carried on a bus?

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    C: So riders can exit by any window or door in an emergency. Secure baggage so the driver can move freely, riders can get out through any window or door in an emergency, and riders are protected if carry-ons fall or shift. Commercial Driver's License Manual (2025 CDL Manual): 4.2 Loading and Trip Start, page 4-2.

  8. Question 8At a crossing with gates, when may you proceed after a train passes?

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    B: When the gates are up and the lights have stopped flashing, and it is safe. Remain stopped until the gates go up and the lights stop flashing, then proceed when it is safe. Commercial Driver's License Manual (2025 CDL Manual): 2.15.2 Warning Signs and Devices, page 2-31.

  9. Question 9What is the most solid Class 6 poison a bus may carry?

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    C: 100 pounds. Buses must never carry more than 100 pounds of solid Class 6 poisons. Commercial Driver's License Manual (2025 CDL Manual): 4.2.2 Forbidden Hazardous Materials, page 4-2.

  10. Question 10Carry-on bags stored on overhead racks should be secured mainly to:

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    A: Protect riders from injury if they fall or shift. One purpose of securing baggage is to protect riders from injury if carry-ons fall or shift. Commercial Driver's License Manual (2025 CDL Manual): 4.2 Loading and Trip Start, page 4-2.

  11. Question 11Where on a bus are explosives other than small-arms ammunition forbidden?

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    A: In the space occupied by people. Buses must never carry explosives in the space occupied by people, except small-arms ammunition. Commercial Driver's License Manual (2025 CDL Manual): 4.2.2 Forbidden Hazardous Materials, page 4-2.

  12. Question 12What is the standee line?

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    C: A line showing riders where they may not stand, at the front of the bus. Buses designed for standing riders have a line on the floor (or another means) showing where riders cannot stand. All standing riders must stay behind it. Commercial Driver's License Manual (2025 CDL Manual): 4.2.3 Standee Line, page 4-2.

  13. Question 13Labeled radioactive materials must never be carried where on a bus?

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    B: In the space occupied by people. Labeled radioactive materials must never be carried in the space occupied by people. Commercial Driver's License Manual (2025 CDL Manual): 4.2.2 Forbidden Hazardous Materials, page 4-2.

  14. Question 14No rider may stand forward of:

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    B: The rear of the driver's seat. Riders may not stand anywhere ahead of the back of the driver's seat. 49 CFR 392.62 also requires standees to stay behind the standee line. Commercial Driver's License Manual (2025 CDL Manual): 4.2.3 Standee Line, page 4-2.

  15. Question 15According to the manual, what is the limit on allowed hazardous materials on a bus?

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    D: No more than 500 pounds total, and no more than 100 pounds of any one class. Buses must never carry more than 500 pounds total of allowed hazardous materials, or more than 100 pounds of any one class. Commercial Driver's License Manual (2025 CDL Manual): 4.2.2 Forbidden Hazardous Materials, page 4-2.

  16. Question 16How wide is the standee line painted on the floor of buses designed to allow standing?

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    B: Two inches. A bus built for standing riders must mark the no-standing area with a two-inch floor line or another method. Commercial Driver's License Manual (2025 CDL Manual): 4.2.3 Standee Line, page 4-2.

  17. Question 17A rider wants to bring a car battery onto the bus. What should you do?

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    B: Refuse; don't let riders carry on common hazards like car batteries. Riders sometimes board with unlabeled hazardous materials. Do not let them carry on common hazards such as car batteries or gasoline. Commercial Driver's License Manual (2025 CDL Manual): 4.2.2 Forbidden Hazardous Materials, page 4-2.

  18. Question 18When arriving at a destination or an intermediate stop, which of these should you announce?

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    B: The location, reason for stopping, next departure time and bus number. Announce the location, the reason for stopping, the next departure time and the bus number. Commercial Driver's License Manual (2025 CDL Manual): 4.2.4 At Your Destination, page 4-2.

  19. Question 19The aisle of your bus is on a lower level than the seats. When is it best to remind riders of the step-down?

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    D: Before coming to a complete stop. If the aisle is lower than the seats, warn riders about the step-down, ideally before the bus has fully stopped. Commercial Driver's License Manual (2025 CDL Manual): 4.2.4 At Your Destination, page 4-2.

  20. Question 20Why should charter bus drivers not let riders on the bus until departure time?

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    A: To help prevent theft or vandalism of the bus. Keeping riders off a charter bus until departure time helps prevent theft or vandalism of the bus. Commercial Driver's License Manual (2025 CDL Manual): 4.2.4 At Your Destination, page 4-2.

  21. Question 21When is the best time to explain rules about smoking, drinking or playing radios on the bus?

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    D: At the start of the trip. Mention comfort and safety rules at the start of the trip. Explaining them early helps avoid trouble later. Commercial Driver's License Manual (2025 CDL Manual): 4.3.1 Passenger Supervision, page 4-2.

  22. Question 22While driving a bus, where should you scan?

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    C: The interior of the bus as well as the road ahead, to the sides and to the rear. Keep checking inside the bus as well as ahead, beside and behind it; riders may need reminders such as keeping arms and heads inside. Commercial Driver's License Manual (2025 CDL Manual): 4.3.1 Passenger Supervision, page 4-3.

  23. Question 23Riders have just boarded at a stop. When should you start moving?

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    B: After they sit down or brace themselves. Riders can stumble when the bus starts or stops, so wait for them to sit down or brace themselves before starting, and start smoothly. Commercial Driver's License Manual (2025 CDL Manual): 4.3.2 At Stops, page 4-3.

  24. Question 24How should you start and stop the bus?

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    C: As smoothly as possible to avoid rider injury. Starting and stopping should be as smooth as possible to avoid injuring riders. Commercial Driver's License Manual (2025 CDL Manual): 4.3.2 At Stops, page 4-3.

  25. Question 25A drunk rider is causing a disturbance. Where should you have the rider get off?

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    A: Somewhere safe, such as the next scheduled stop or a well-lighted area with other people. You must ensure the disruptive rider's safety as well as others'. Don't discharge them where it would be unsafe; the next scheduled stop or a well-lighted area with other people may be safer. Commercial Driver's License Manual (2025 CDL Manual): 4.3.2 At Stops, page 4-3.

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Our own questions, written from the Commercial Driver's License Manual (2025 CDL Manual), official manual, and checked against it.